Data Communication and Networking Questions

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81.

Internet-like networks within an enterprise.

A

Intranets

B

Switching alternating

C

Inter organizational networks

D

Extranets

Correct Answer: A

None.

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82.

How many bits internet address is assigned to each host on a TCP/IP internet which is used in all communications with the host?

A

16 - bits

B

32 - bits

C

48 - bits

D

64 - bits

E

None of the above

Correct Answer: B

None.

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83.

With an IP address of 100, you currently have 80 subnets. What subnet mask should you use to maximize the number of available hosts?

A

192

B

224

C

240

D

248

E

252

Correct Answer: E

None.

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84.

Which of the following types of channels moves data relatively slowly?

A

wideband channel

B

voiceband channel

C

narrowband channel

D

broadband channel

E

None of the above

Correct Answer: C

None.

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85.

Which of the following is required to communicate between two computers?

A

communications software

B

protocol

C

communications hardware

D

access to transmission medium

E

All of the above

Correct Answer: E

None.

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86.

Which of the following does not allow multiple users or devices to share one communications line?

A

doubleplexer

B

multipplexer

C

concentrator

D

controller

E

None of the above

Correct Answer: A

None.

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87.

The geostationary satellite used for communication systems

A

rotates with the earth

B

remains stationary relative to the earth

C

is positioned over equator

D

All of the above

E

None of the above

Correct Answer: D

None.

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88.

Telecommunication networks frequently interconnect an organization with its customers and suppliers. Select the best fit for answer:

A

Bandwidth alternatives

B

Switching alternating

C

Inter organizational networks

D

Extranets

E

None of the above

Correct Answer: C

None.

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89.

The packets switching concept was first proposed

A

in the late 1980s for the Defense Ministry of US.

B

in the early 1960s for military communication systems, mainly to handle speech

C

in the late 1950s for Defense Ministry of US

D

All of the above

E

None of the above

Correct Answer: B

None.

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90.

The _____ houses the switches in token ring.

A

transceiver

B

nine-pin connector

C

MAU

D

NIC

E

None of the above

Correct Answer: C

None.

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